TF300T: Remove vold.fstab from the build. This because vold.fstab is obsolete

Change-Id: I5b683d65ffdd5f77f190f0957f68b00682887859
TF300T: Add the vold device to fstab.cardhu

Change-Id: Ieb5732e1ce8bb2dfb0c50772d5671041a7bfca0f